Weird selection problem, selected the unselecting one

I have no idea why I select goes wrong like this. Especially when I meet the situation is that I did not even touch any of its, it still selected by me. Would anyone meet the same problem as like I do? and how to solve this, please? I reinstalled and re-download the newer one, still the same. (using 2.79 and 2.79a)

could you try it again in wireframe viewport mode and tell how that works?